Contacting Specification The contacting in the VEC defines the relationship between Cavities(CavityReference), WireEnds, Terminals and Seals. Since there are various types of contactings possible, the different types are not defined explicitly in the VEC. The VEC offers a quite generic structure (the Contacting), which should be able to support all the different possible types. This is necessary, because the different contacting types are driven by technical requirements and new contactings might emerge over the time.